2 research outputs found
Investigation of Performance in Integrated Access and Backhaul Networks
Wireless backhaul allows densification of mobile networks without incurring
additional fiber deployment cost. This, in turn, leads to high spatial reuse,
which is a significant tool to meet increasing wireless demand in 5G networks.
Integrated access and backhaul (IAB), where access and backhaul network share
the same standard wireless technology (e.g. 5G new radio (NR) standard), allows
interoperability among different IAB manufacturers and flexible operation
between access and backhaul. This paper investigates joint resource allocation
and relay selection in a multi-hop IAB network to maximize geometric mean of UE
rates. Our study illustrates several advantages and features of IAB. First, IAB
significantly improves UE rates compared to access only networks and can
provide an important intermediate solution during incremental fiber deployment.
Second, IAB networks with optimal mesh outperforms IAB networks with RSRP based
spanning tree both in terms of rate and latency.Comment: Accepted in Infocom 2018 Workshop (mmSys 2018
Broadcasting Real-Time Flows in Integrated Backhaul and Access 5G Networks
This paper studies the problem of broadcasting real-time flows in multi-hop
wireless networks. We consider that each packet has a stringent deadline, and
each node in the network obtains some utility based on the number of packets
delivered to it on time for each flow. We propose a distributed protocol, the
delegated-set routing (DSR) protocol, that incurs virtually no overhead of
coordination among nodes. We also develop distributed algorithms that aim to
maximize the total system utility under DSR. The utility of our DSR protocol
and distributed algorithms are demonstrated by both theoretical analysis and
simulation results, where we show that our algorithms achieve better
performance even when compared against centralized throughput optimal policies